CN202730430U - Structure of feed dog internal tooth - Google Patents

Abstract

The utility model relates to a structure of a feed dog internal tooth. The feed process of a continuous feed sewing machine is completed through the alternating front-and-back and up-and-down motion of a feed dog internal tooth and a feed dog external tooth. Sewing fluffs can be accumulated in an external tooth socket during the feed process; the feed dog internal tooth is in a falling state during the rising process of the feed dog external tooth; the minimum spacing from the external tooth socket to the bottom part of the front end of the internal tooth is 0.2-0.3mm, and if rubbish is piled in the external tooth socket, an upward force can be directly applied to the feed dog internal tooth, and thereby, the internal tooth is broke. The structure of the feed dog internal tooth comprises a feed dog internal tooth body. The top end of the bottom part of the feed dog internal tooth body is provided with at least three teeth. The structure of the feed dog internal tooth has the advantages that the structure is simple, the use convenient is use, and the material consumption is saved.

Description

Toothing in a kind of feed dog

One, technical field:

The utility model relates to toothing in a kind of feed dog.

Two, background technology:

The work feed process of cloth-feeding sewing machine alternately moves up and down to finish in front and back by feed dog internal tooth and feed dog external tooth continuously, having the sewing batting in the work feed process accumulates in the outer teeth groove, the feed dog external tooth in uphill process the feed dog internal tooth for the decline state, the minimum spacing of outer teeth groove and internal tooth front bottom end is 0.2-0.3mm, if and this heap has rubbish, directly can a power that make progress be arranged to the feed dog internal tooth, thereby cause the internal tooth fracture.

Three, utility model content:

The utility model provides a kind of simple in structure, easy to use, interior toothing of saving consumptive material feed dog in order to solve the weak point in the above-mentioned background technology.

For achieving the above object, the technical solution adopted in the utility model is: toothing in a kind of feed dog, comprise feed dog internal tooth body, and the tip of described feed dog internal tooth body bottom is provided with tooth.

Described tooth is provided with 3 at least.

Compared with prior art, the advantage and the effect that the utlity model has are as follows: simple in structure, easy to use, saving consumptive material.

Four, description of drawings:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the upward view of Fig. 1;

Fig. 3 is the top view of Fig. 1.

Five, the specific embodiment:

Referring to Fig. 1, Fig. 2 and Fig. 3: toothing in a kind of feed dog, comprise feed dog internal tooth body 1, the tip of feed dog internal tooth body 1 bottom is provided with tooth 2, and described tooth 2 is provided with 3 at least.

The utility model in use, the tooth by feed dog internal tooth bottom tip place is with its refuse cleaning, so that Sewing machines is better worked.

Claims (2)

1. the interior toothing of feed dog comprises feed dog internal tooth body (1), and it is characterized in that: the tip of described feed dog internal tooth body (1) bottom is provided with tooth (2).

2. toothing in a kind of feed dog according to claim 1, it is characterized in that: described tooth (2) is provided with 3 at least.

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